76713731 has 4 divisors (see below), whose sum is σ = 77299464. Its totient is φ = 76128000.

The previous prime is 76713709. The next prime is 76713733. The reversal of 76713731 is 13731767.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 76713731 - 2⁶ = 76713667 is a prime.

It is a super-2 number, since 2×76713731² = 11769993047880722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 76713691 and 76713700.

It is not an unprimeable number, because it can be changed into a prime (76713733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 292670 + ... + 292931.

It is an arithmetic number, because the mean of its divisors is an integer number (19324866).

Almost surely, 2^76713731 is an apocalyptic number.

76713731 is a deficient number, since it is larger than the sum of its proper divisors (585733).

76713731 is a wasteful number, since it uses less digits than its factorization.

76713731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585732.

The product of its digits is 18522, while the sum is 35.

The square root of 76713731 is about 8758.6375081973. The cubic root of 76713731 is about 424.9042109381.

The spelling of 76713731 in words is "seventy-six million, seven hundred thirteen thousand, seven hundred thirty-one".